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Finding the Fourth Proportional to 531,012.56, 796,521.72 and 157,038.80

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Solution

The fourth proportional to 531,012.56, 796,521.72 and 157,038.80 is: 235,559.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,012.56 : 796,521.72 = 157,038.80 : x
  2. Step 2: Convert to fraction form
    531,012.56/796,521.72 = 157,038.80/x
  3. Step 3: Cross multiply
    531,012.56x = 796,521.72 × 157,038.80
  4. Step 4: Simplify right side
    531,012.56x = 125,084,815,082.74
  5. Step 5: Solve for x
    x = 125,084,815,082.74/531,012.56
  6. Step 6: Final answer
    x = 235,559.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.